If the drain tubing from the air gap faucet on the reverse osmosis hookup that connects to the drainpipe sags lower than the point where it connects to the drainpipe water dripping from the end can cause the drain tube to create a periodic siphoning effect making a gurgling noise.
Air gap faucet making noise.
Loose connection damaged faucet stem drain line clogged drain saddle shifted.
Air gap faucet leaking.
Have you noticed water coming out of the hole of the air gap faucet.
The annoying sink noise.
Tier1 water and air filtration 118 804 views.
They do tend to make noise and sometimes it can be louder than at other times.
Check faucet drain tube from faucet to trap connection for obstructions.
The air gap is basically to prevent the system from back drawing and dispensing dirty unfiltered water from the system drain.
Also check the rest of the system to make sure everything is ok.
Closing the stopper on the drain reduces the noise somewhat and putting my finger over the air gap hole on the faucet prevents it from making the gurgling noise so it s almost certainly air in the drain line causing the noise with air being sucked through the hole in the back of the faucet.
It s caused by air being pushed out.
Keviouspb de i talked to manufacturer of system and a customer service rep gave 3 options to stop the hissing noise at faucet dispenser.
Bypass air gap feature in faucet.
There s a physical air barrier of water dropping into the trough air gap faucets can make a gurgling sound while the storage tank is being filled.
I had the gurleling sound from the sink and suction noise from the air gap faucet.
The air gap on the faucet is part of the ro system.
Spoke to watts technical support they asked if i put a restrictor on the red hose going into the drain into the ro.
But if it persists for several days or the noise is louder than usual check if there is an obstruction in the drain pipe.
I checked the old hose and removed the orange spiral restrictor put it on the new red hose and the noises are gone.
If so this is known as an air gap leak and it is very easy to fix.
The noise is especially noticeable when you first install the ro system or put in new filters.